Help with exhaust ( aftermarket ) Yz450f

4 replies to this topic
  • Tyler450

Posted February 16, 2013 - 12:31 PM


I'm thinking I'm gunna go with the pro circuit T4 with T4 header for my 06 yz450f and was wondering what everyone thought , if you use one , what there like , etc

Should I order the JD jetting kit with it ?

Thanks guys !

  • Tyler450

Posted February 17, 2013 - 12:46 PM



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  • FinchFan194

Posted February 17, 2013 - 02:11 PM


You will get a bigger gain by simply installing the JDJetting kit, the exhaust system is just fin on the 06 YZf IMHO. Much more bang for your buck in other mods.

  • Tyler450

Posted February 17, 2013 - 07:58 PM


What's some other good mods?

  • FinchFan194

Posted February 17, 2013 - 09:16 PM


Nothing will allow you to feel more comfertable and allow you to go faster than a suspension re-valve.

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